Re: [RESEND PATCH v2 14/15] ASoC: qcom: apq8096: Add db820c machine driver

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On Thu 14 Dec 09:34 PST 2017, srinivas.kandagatla@xxxxxxxxxx wrote:

> From: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
> 
> uThis patch adds support to DB820c machine driver.

Drop 'u' and expand the message to claim that this is the machine driver
for 8996, used by the db820c.

[..]
> +static struct snd_soc_dai_link msm8996_dai_links[] = {

Are there any differences between the DAI links of apq8096 and msm8996?

> +	/* FrontEnd DAI Links */
> +	{
> +		.name		= "MultiMedia1 Playback",
> +		.stream_name	= "MultiMedia1",
> +		.cpu_dai_name	= "MM_DL1",
> +		.platform_name	= "q6asm_dai",
> +		.dynamic	= 1,
> +		.dpcm_playback	= 1,
> +
> +		.codec_dai_name	= "snd-soc-dummy-dai",
> +		.codec_name = "snd-soc-dummy",
> +	},
> +	/* Backend DAI Links */
> +	{
> +		.name		= "HDMI Playback",
> +		.stream_name	= "q6afe_dai",
> +		.cpu_dai_name	= "HDMI",
> +		.platform_name	= "q6routing",
> +		.no_pcm		= 1,
> +		.dpcm_playback	= 1,
> +		.be_hw_params_fixup = msm8996_be_hw_params_fixup,
> +		.codec_dai_name	= "i2s-hifi",
> +		.codec_name = "hdmi-audio-codec.0.auto",
> +	},
> +};
> +
> +static int apq8096_sbc_parse_of(struct snd_soc_card *card)

msm8996_parse_of()

> +{
> +	struct device *dev = card->dev;
> +	int ret;
> +
> +	ret = snd_soc_of_parse_card_name(card, "qcom,model");
> +	if (ret)
> +		dev_err(dev, "Error parsing card name: %d\n", ret);
> +
> +	return ret;
> +}
> +
> +static int msm_snd_apq8096_probe(struct platform_device *pdev)

msm_snd_msm8996_probe()?

> +{
> +	int ret;
> +	struct snd_soc_card *card;
> +
> +	card = devm_kzalloc(&pdev->dev, sizeof(*card), GFP_KERNEL);
> +	if (!card)
> +		return -ENOMEM;
> +
> +	card->dev = &pdev->dev;
> +
> +	ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
> +	if (ret)
> +		return ret;
> +
> +	card->dai_link = msm8996_dai_links;
> +	card->num_links	= ARRAY_SIZE(msm8996_dai_links);
> +
> +	ret = apq8096_sbc_parse_of(card);
> +	if (ret) {
> +		dev_err(&pdev->dev, "Error parsing OF data\n");

No need to print in both parse_of() and here.

> +		return ret;
> +	}
> +
> +	ret = devm_snd_soc_register_card(&pdev->dev, card);
> +	if (ret)
> +		dev_err(&pdev->dev, "sound card register failed (%d)!\n", ret);
> +	else
> +		dev_err(&pdev->dev, "sound card register Sucessfull\n");

This isn't an error, skip the print here.

> +
> +	return ret;
> +}
> +
> +static const struct of_device_id msm_snd_apq8096_dt_match[] = {
> +	{.compatible = "qcom,apq8096-sndcard"},
> +	{}
> +};
> +
> +static struct platform_driver msm_snd_apq8096_driver = {
> +	.probe  = msm_snd_apq8096_probe,
> +	.driver = {
> +		.name = "msm-snd-apq8096",
> +		.owner = THIS_MODULE,

Drop the .owner

Regards,
Bjorn
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